Giúp mình với!

Here are the correct answers to the given questions: 1. A. specialise (However, a more suitable answer might be 'interact'. Interacting with each other is more relevant to building good relationships.) 2. C. surf (Surfing the internet means browsing through it, which is a common activity on smartphones.) 3. D. protein (Meat is a common source of protein, which is essential for building muscles.) 4. A. Go (However, a more grammatically correct answer would be 'going'. The sentence should read 'I'm going on a safari in Africa...') 5. C. mustn't (You must not damage any hotel facilities, as it is against the rules.) 6. C. put on (Putting on the jacket is the correct action, especially when it's cold outside.) 7. B. should (You should get up as early as possible to avoid being late for class.) 8. C. on (Many shoppers take advantage of labeled prices on Thanksgiving Day, often during sales events.) 9. C. turned it down (Peter chose not to accept the job offer.) 10. B. impact (Making a positive impact on people's lives is the desired goal of becoming a nurse.) 11. A. considerate (It was considerate of Mary to ensure every member felt included and valued.) 12. A. unusually (Consumers should be aware of products that are unusually cheap, as they might be counterfeit.) 13. B. Are you having (The conversation is about whether someone is having something tomorrow.) 14. C. not only (Tech-based services provide not only a fast but also a convenient way to do shopping.) 15. B. Do not feed wildlife! 16. B. David needs to arrange the time to pick up his order. Here are the answers: 17. B. Thanks for your advice. 18. B. Thanks for your advice. 19. D. scan 20. B. aren't allowed to 21. C. Your parents must be proud of you.